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Background Leptospirosis is a globally prevalent zoonotic disease caused by pathogenic Leptospira species. The manifestation of leptospirosis can range widely, from being asymptomatic to causing severe multi-organ failure with a high mortality rate. It is uncommon for leptospirosis to present primarily with neurological complications. In this context, we discuss a notable case of Leptospira borgpetersenii infection manifesting as aseptic meningitis in China. Case presentation In this study, we describe a primary case of neuroleptospirosis leading to symptomatic aseptic meningitis following exposure to Leptospira borgpetersenii . Initially managed for viral meningitis, the diagnosis of leptospirosis was subsequently confirmed through cerebrospinal fluid (CSF) analysis using metagenomic next-generation sequencing (mNGS) and Metagenomics CAPture Sequencing (MetaCAP), both of which identified Leptospira borgpetersenii . Following a course of antibiotics and methylprednisolone therapy, the patient fully recovered. Conclusion This case underscores the importance of considering leptospirosis in differential diagnoses for aseptic meningitis, especially in individuals with occupational risks related to water or animal exposure. MetaCAP’s extensive coverage, sensitivity, and early pathogen detection capabilities can significantly enhance patient outcomes.
Wu et al. (Wed,) studied this question.